chore: Updating for Tutorial

[dtdang]

What I did

fixes: ape-342 fixes: ape-352

• Update README.md to remove Argent-X key-file import description and removed duplicate header of Mainnet Alpha Whitelist Deployment Token
• Update setup.py to include python version 3.10 since starknet-dev and starknet.py are compatible now with 3.10
• Remove function and test for importing Argent-X key-file method

How I did it

How to verify it

Checklist

• [ ] Passes all linting checks (pre-commit and CI jobs)
• [ ] New test cases have been added and are passing
• [ ] Documentation has been updated
• [ ] PR title follows Conventional Commit standard (will be automatically included in the changelog)

[linear[bot]]

APE-342 Starknet small updates

* Add documentation for funding existing accounts * include [https://starkgate.starknet.io/](https://starkgate.starknet.io/) for Ethereum to Starknet transfer * remove key-file for argent-x wallets (depreciated) * remove documentation and function * upgrade setup.py to python version 3.10

[linear[bot]]

APE-352 "chore: Updating for Tutorial" (ApeWorX/ape-starknet #121)

### What I did fixes: # * Update [README.md](http://README.md) to remove Argent-X key-file import description and removed duplicate header of Mainnet Alpha Whitelist Deployment Token * Update [setup.py](http://setup.py) to include python version 3.10 since starknet-dev and [starknet.py](http://starknet.py) are compatible now with 3.10 * Remove function and test for importing Argent-X key-file method ### How I did it ### How to verify it ### Checklist * [ ] Passes all linting checks (pre-commit and CI jobs) * [ ] New test cases have been added and are passing * [ ] Documentation has been updated * [ ] PR title follows [Conventional Commit](https://www.conventionalcommits.org/en/v1.0.0/) standard (will be automatically included in the changelog) --- [ApeWorX/ape-starknet #121](https://github.com/ApeWorX/ape-starknet/pull/121) by [@dtdang](https://github.com/dtdang) on GitHub *via LinearSync*